A uniformly heated baking device and a baking method for preparing environmentally friendly bricks

Abstract

The invention discloses a uniformly heated baking device and a baking method for preparing environmentally friendly bricks, which relate to the field of baking devices, including a tunnel kiln, wherein a plurality of kiln cars are arranged in the tunnel kiln, the kiln car comprises a car frame and a lining, a convex portion is arranged at one end of the lining, a concave portion is arranged at the other end of the lining, sand sealing plates are arranged on both sides of the kiln car, sand sealing grooves are opened on both sides of the tunnel kiln, and the sand sealing plates extend into the sand sealing grooves; a pressing assembly is arranged at one end of the kiln car, and a pushing assembly is arranged at the other end of the kiln car, and when the kiln car in the tunnel kiln moves, the pressing assembly on the upper kiln car cooperates with the pushing assembly on the lower kiln car along the moving direction of the kiln car. The convex portions and concave portions of the linings of the two kiln cars cooperate to make the gap between the two kiln cars smaller, which can effectively prevent the flame and hot air in the tunnel kiln from directly rushing to the car frame through the gap, reduce the heating of the car frame, increase the service life of the car frame, and reduce the maintenance times of the kiln car.

Description

Technical Field

[0001] The invention relates to the field of baking devices, and in particular to a baking device with uniform heating and a baking method for preparing environmentally friendly bricks. Background Art

[0002] The firing process of environmentally friendly bricks refers to the process of calcining the mixed raw materials at high temperature. This process is crucial to the final physical and chemical properties of environmentally friendly bricks. The firing process not only gives the bricks hardness and stability, but also improves their thermal insulation performance and durability. The firing equipment for environmentally friendly bricks mostly uses tunnel kilns.

[0003] The tunnel kiln is a modern continuous firing thermal equipment, which is mainly built with refractory materials, thermal insulation materials and building materials. It is equipped with kiln cars and other vehicles inside. It is usually in the shape of a tunnel. The structure of the tunnel kiln includes the kiln body, kiln transportation equipment (such as kiln cars and kiln tools), fuel combustion system (including fuel transportation pipelines, fuel preheating and burners) and ventilation equipment (including smoke exhaust system, air curtain stirring system and cooling system). The kiln body is equipped with various air flow inlets and outlets, and the kiln car runs on the track laid at the bottom. The combustion equipment is set on both sides of the middle of the kiln body to form a fixed high-temperature zone. The working principle of the tunnel kiln is based on the reverse flow of hot air. The high-temperature flue gas generated by the combustion flows along the tunnel toward the kiln head under the action of the chimney or induced draft fan at the front end of the kiln, and gradually preheats the products entering the kiln. Cold air is blown into the tail of the kiln to cool the fired products. The kiln car is continuously pushed forward from the entrance of the preheating zone, and the fired products are pushed out from the outlet of the cooling zone. A car-pushing machine is installed at the entrance of the tunnel kiln. Through its pushing on the convex part of the rear kiln car, the front edge of each kiln car contacts with its rear edge in turn to generate a pushing force and move forward.

[0004] Chinese patent application CN108826969A discloses a highly enclosed tunnel kiln. The design realizes a tight seal between the kiln car and the kiln wall by providing a T-shaped groove on the kiln car, inserting a sealing brick therein, and providing a corresponding sealing groove on the kiln wall. In addition, a skirt plate with a sand seal insert is installed on the side of the kiln car frame. The insert is inserted into the sand seal groove in the kiln wall, further enhancing the sealing effect. This design not only effectively prevents heat loss and ensures the stability of the temperature in the kiln, but also ensures the smooth operation of the kiln car in the kiln, thereby improving production efficiency and energy utilization.

[0005] Chinese patent CN114440629B discloses a tunnel kiln, which is characterized by the synergistic effect of the kiln car design and the furnace body structure. The kiln car is equipped with a load-bearing plate and rollers. The rollers can roll freely on the track, and the side of the load-bearing plate is provided with a special locking groove. The inner wall of the furnace body is provided with a first sliding groove and a built-in locking mechanism. The core component of the mechanism is a slidable locking rod. When the kiln car enters the heating area, the locking rod is automatically inserted into the locking groove to ensure the stable positioning of the kiln car, thereby reducing the risk of the blank deviating from the heating zone during high-temperature firing, significantly improving the accuracy and quality of product firing, and providing more reliable technical guarantees for the production of ceramics and other products.

[0006] The above patents and prior art also have the following defects:

[0007] The kiln car is usually paved with refractory materials, but the bottom of the kiln car is mostly made of steel structure. Rollers, bearings and guide rails are also arranged at the bottom of the kiln car. When the kiln car moves in the tunnel kiln, the flame and hot air in the kiln directly impact the bottom of the kiln car, causing high-temperature damage to the steel frame and moving parts at the bottom of the kiln car. The solution in the prior art is mostly to move the kiln cars close to each other, but the kiln cars are pushed into the tunnel kiln one by one. When the power to push the kiln car is removed, the kiln cars in the tunnel kiln lose thrust and cannot be pushed tightly together. Gaps appear between two adjacent kiln cars, which also causes flames and hot air to directly impact the bottom of the kiln car, causing damage to the kiln car, reducing the service life of the kiln car, and increasing the maintenance frequency of the kiln car, which is more troublesome to maintain.

[0008] Therefore, the present application provides a uniformly heated baking device and a baking method for preparing environmentally friendly bricks to meet the needs. Summary of the invention

[0009] The purpose of the present application is to provide a uniformly heated roasting device and a roasting method for preparing environmentally friendly bricks. The raised and recessed parts of the linings of the two kiln cars cooperate to make the gap between the two kiln cars smaller, which can effectively prevent the flame and hot air in the tunnel kiln from directly rushing into the frame through the gap, reduce the heating of the frame, increase the service life of the frame, and reduce the maintenance times of the kiln car.

[0010] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a uniformly heated roasting device, comprising a tunnel kiln, wherein a plurality of kiln cars are arranged in the tunnel kiln, wherein the kiln car comprises a car frame and a lining, wherein a convex portion is arranged at one end of the lining, and a concave portion is arranged at the other end of the lining, and sand sealing plates are arranged on both sides of the kiln car, and sand sealing grooves are opened on both sides of the tunnel kiln, and the sand sealing plates extend into the sand sealing grooves;

[0011] A pressing assembly is provided at one end of the kiln car, and a pushing assembly is provided at the other end of the kiln car. When the kiln car moves in the tunnel kiln, the pressing assembly on the upper kiln car cooperates with the pushing assembly on the lower kiln car along the moving direction of the kiln car.

[0012] The clamping assembly includes a rising plate and a clamping rod, the pushing assembly includes a rolling wheel and a pushing plate, a clamping track is fixedly installed at the bottom of the tunnel kiln, when the kiln car moves in the tunnel kiln, the rolling wheel moves on the clamping track, the two ends of the clamping track are arranged to be tilted downward, and the rolling wheel can gradually rise along the inclined part of the clamping track when moving;

[0013] Along the moving direction of the kiln car, when the rolling wheel on the next kiln car moves upward, the rolling wheel pushes the rising plate on the previous kiln car to rise through the pushing plate, and the rising plate pushes the corresponding kiln car to move through the clamping rod, so that the raised part of the next kiln car is inserted into the recessed part of the previous kiln car.

[0014] Preferably, the pushing component also includes a pushing anti-slip block, and the clamping component also includes a clamping anti-slip block, the pushing anti-slip block is fixedly installed on the top of the pushing plate, and the clamping anti-slip block is fixedly installed on the bottom of the rising plate, and when the rolling wheel is located near the two ends of the clamping track, the clamping anti-slip block is located above the pushing anti-slip block.

[0015] Preferably, the pushing assembly also includes a pushing fixed plate, a pushing fixed frame, a pushing slide rod and a fixed frame, the pushing fixed plate is fixedly mounted on the vehicle frame, the pushing fixed frame is fixedly mounted on the pushing fixed plate, the pushing slide rod is fixedly mounted in the pushing fixed frame, one end of the pushing plate is arranged in the pushing fixed frame, the pushing slide rod passes through the pushing plate and slidably cooperates with the pushing plate, the fixed frame is fixedly mounted on the bottom of the pushing plate, and the rolling wheel is rotatably connected to the fixed frame.

[0016] Preferably, the clamping assembly also includes a clamping fixing plate, a clamping fixing block and a clamping sliding rod, the clamping fixing plate is fixedly mounted on the frame, the clamping fixing block is fixedly mounted on the clamping fixing plate, one end of the clamping rod is rotatably connected to the rising plate, the other end of the clamping rod is rotatably connected to the clamping fixing block, the clamping sliding rod is arranged on the clamping fixing plate, and the clamping sliding rod passes through the rising plate and slidably cooperates with the rising plate.

[0017] Preferably, the clamping assembly also includes a clamping cross bar, a clamping slide block, a fixed side plate and a fixed bottom plate, one end of the clamping cross bar is fixedly mounted on the clamping fixed block, the other end of the clamping cross bar is fixedly mounted on the fixed side plate, the fixed bottom plate is fixedly mounted on the bottom of the fixed side plate, the clamping slide block is fixedly mounted on the top of the clamping slide bar, the clamping cross bar passes through the clamping slide block and slidably cooperates with the clamping slide block, and the bottom of the clamping slide bar abuts against the fixed bottom plate.

[0018] Preferably, there are two clamping slide bars, a limit strip is fixedly mounted on the fixed bottom plate, the limit strip is located between the two clamping slide bars, and the fixed side plate and the fixed bottom plate are both fixedly mounted on the clamping fixed plate.

[0019] Preferably, curved sealing grooves are provided on both sides of the tunnel kiln, and curved sealing protrusions are provided on both sides of the lining. When the kiln car is located in the tunnel kiln, the curved sealing protrusions are located in the curved sealing grooves.

[0020] Preferably, two movable guide rails are fixedly installed at the bottom of the tunnel kiln, a support block is fixedly installed at the bottom of the frame, a rotating shaft is rotatably connected to the support block, movable wheels are fixedly installed at both ends of the rotating shaft, and the movable wheels are located on the movable guide rails.

[0021] Preferably, movable anti-slip plates are fixedly installed on both sides of the movable wheel, and the two movable anti-slip plates are located on both sides of the movable guide rail; and rolling anti-slip plates are fixedly installed on both sides of the rolling wheel, and the two rolling anti-slip plates are located on both sides of the clamping track.

[0022] Preferably, the lining includes a support plate, refractory bricks and refractory cushions, the support plate is fixedly mounted on the frame, the refractory bricks are fixedly mounted on the support plate, the refractory cushions are arranged on the refractory bricks, the support plate is made of steel, the refractory bricks are clay refractory bricks, and the refractory cushions are made of asbestos.

[0023] A baking method for preparing environmentally friendly bricks uses the above-mentioned baking device with uniform heating.

[0024] In summary, the technical effects and advantages of the present invention are as follows:

[0025] 1. In the present invention, when the kiln car moves into the tunnel kiln, the pressing rail lifts the rolling wheel, the rolling wheel drives the rising plate to rise through the pushing plate, the rising plate makes the two kiln cars close together through the pressing rod, the raised parts and the recessed parts of the linings of the two kiln cars cooperate, so that the gap between the two kiln cars is smaller, which can effectively prevent the flame and hot air in the tunnel kiln from directly rushing to the car frame through the gap, reduce the heat of the car frame, increase the service life of the car frame, and reduce the maintenance times of the kiln car;

[0026] 2. In the present invention, sand sealing plates are arranged on both sides of the kiln car, and the sand sealing plates move in the sand sealing grooves, and the sand sealing grooves are filled with sand and gravel. After the linings between adjacent kiln cars are tightly closed, the sand sealing plates seal the space between the car frame and the side wall of the tunnel kiln, so that when the environmentally friendly brick materials on the lining of the kiln car in the tunnel kiln are sintered, the flame and hot air will not pass through the gap through the lining and directly rush to the car frame, further ensuring that the kiln car frame is heated lower, preventing the frame from being damaged by high temperature, and improving the service life of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the tunnel kiln and the kiln car in the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the tunnel kiln in the present invention;

[0030] Figure 3 For the present invention Figure 2 A magnified view of part A;

[0031] Figure 4 It is a structural schematic diagram of the kiln car in the present invention;

[0032] Figure 5 For the present invention Figure 4 A magnified view of part B;

[0033] Figure 6 It is a schematic diagram of the structure of the support plate, refractory bricks and frame in the present invention;

[0034] Figure 7 For the present invention Figure 6 Enlarged view of part C;

[0035] Figure 8 It is a schematic diagram of the structure of the vehicle frame, lining, pressing assembly and pushing assembly in the present invention;

[0036] Fig. 9 For the present invention Figure 8 Enlarged view of part D.

[0037] In the figure: 1. tunnel kiln; 2. kiln car; 21. car frame; 22. lining; 221. support plate; 222. refractory brick; 3. sealing sand plate; 4. clamping assembly; 40. fixed bottom plate; 41. rising plate; 42. clamping rod; 43. clamping anti-slip block; 44. clamping fixed plate; 45. clamping fixed block; 46. clamping slide bar; 47. clamping cross bar; 48. clamping slide block; 49. fixed side plate; 5. pushing assembly; 51. rolling wheel; 52. pushing plate; 53. pushing anti-slip block; 54. pushing fixed plate; 55. pushing fixed frame; 56. pushing slide bar; 57. fixed frame; 6. clamping rail; 7. limit strip; 8. curved sealing groove; 9. moving guide rail; 10. support block; 11. rotating shaft; 12. moving wheel; 13. moving anti-slip plate; 14. rolling anti-slip plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Example 1: Reference Figure 1-Figure 9 A uniformly heated roasting device is shown, comprising a tunnel kiln 1, wherein a plurality of kiln cars 2 are arranged in the tunnel kiln 1, wherein the kiln car 2 comprises a car frame 21 and a lining layer 22, wherein a convex portion is arranged at one end of the lining layer 22, and a concave portion is arranged at the other end of the lining layer 22, and sand sealing plates 3 are arranged at both sides of the kiln car 2, and sand sealing grooves are opened at both sides of the tunnel kiln 1, and the sand sealing plates 3 extend into the sand sealing grooves;

[0040] A pressing component 4 is provided at one end of the kiln car 2, and a pushing component 5 is provided at the other end of the kiln car 2. When the kiln car 2 moves in the tunnel kiln 1, along the moving direction of the kiln car 2, the pressing component 4 on the previous kiln car 2 cooperates with the pushing component 5 on the next kiln car 2;

[0041] The clamping assembly 4 includes a rising plate 41 and a clamping rod 42, and the pushing assembly 5 includes a rolling wheel 51 and a pushing plate 52. A clamping track 6 is fixedly installed at the bottom of the tunnel kiln 1. When the kiln car 2 moves in the tunnel kiln 1, the rolling wheel 51 moves on the clamping track 6. The two ends of the clamping track 6 are arranged to be tilted downward. When the rolling wheel 51 moves, it can gradually rise along the inclined part of the clamping track 6.

[0042] Along the moving direction of the kiln car 2, when the rolling wheel 51 on the next kiln car 2 moves upward, the rolling wheel 51 pushes the rising plate 41 on the previous kiln car 2 to rise through the pushing plate 52, and the rising plate 41 pushes the corresponding kiln car 2 to move through the pressing rod 42, so that the raised part of the next kiln car 2 is inserted into the recessed part of the previous kiln car 2.

[0043] The environmentally friendly brick materials are placed on the lining 22 of the kiln car 2. Both ends of the tunnel kiln 1 are opened. A car-pushing machine is installed at the entrance of the tunnel kiln 1. Through the car-pushing machine, the front edges of the kiln cars 2 are contacted with the rear edges of the kiln cars 2 in turn to generate a pushing force and move forward. A burner is arranged in the tunnel kiln 1. When the kiln car 2 moves in the tunnel kiln 1, the sand sealing plate 3 on the kiln car 2 moves in the sand sealing groove on the inner wall of the tunnel kiln 1. The sand sealing groove is filled with sand and gravel. The sand sealing plate 3 separates the frame 21 of the kiln car 2 from the top of the tunnel kiln 1 to prevent hot air and flames from directly rushing into the frame 21. When the car-pushing machine pushes the kiln car 2 to move, and this kiln car 2 pushes another kiln car 2 to move, the two adjacent kiln cars 2 are pressed against each other. During the movement of the kiln car 2 into the tunnel kiln 1, the rolling wheel 51 moves on the inclined part of the clamping track 6 and rises under the pressure of the inclined part of the clamping track 6, the rolling wheel 51 drives the pushing plate 52 to rise, the pushing plate 52 drives the rising plate 41 to rise, and the rising plate 41 pushes the corresponding kiln car 2 to move through the clamping rod 42, so that this kiln car 2 moves toward the next kiln car 2 along the moving direction, so that the raised part of the lining layer 22 of the next kiln car 2 is inserted into the recessed part of the upper lining layer 22 of this kiln car 2. When the kiln car 2 moves in the tunnel kiln 1, the clamping track 6 keeps the rolling wheel 51 in the lifted state. When the jacking machine stops pushing the kiln car 2 out of the entrance of the tunnel kiln 1, the adjacent kiln cars 2 in the tunnel kiln 1 also keep in a close state.

[0044] When the kiln car 2 moves into the tunnel kiln 1, the pressing rail 6 lifts the rolling wheel 51 upward, and the rolling wheel 51 drives the rising plate 41 to rise through the pushing plate 52. The rising plate 41 makes the two kiln cars 2 close together through the pressing rod 42. The raised parts and recessed parts of the linings 22 of the two kiln cars 2 cooperate to make the gap between the two kiln cars 2 smaller, which can effectively prevent the flame and hot air in the tunnel kiln 1 from directly rushing into the frame 21 through the gap, reduce the heat of the frame 21, and increase the service life of the frame 21. At the same time, the kiln car 2 is provided with sand sealing plates 3 on both sides, the sand sealing plates 3 move in the sand sealing groove, and the sand sealing groove is filled with sand and gravel. After the lining 22 between adjacent kiln cars 2 is tightly closed, the sand sealing plates 3 seal the space between the frame 21 and the side wall of the tunnel kiln 1, so that when the environmentally friendly brick materials on the lining 22 of the kiln car 2 are sintered in the tunnel kiln 1, the flame and hot air will not pass through the gap through the lining 22 and directly rush to the frame 21, further ensuring that the frame 21 of the kiln car 2 is heated lower, preventing the frame 21 from being damaged by high temperature, and improving the service life of the frame 21.

[0045] After the linings 22 between adjacent kiln cars 2 are tightly sealed, the sealing sand plate 3 seals the space between the frame 21 and the side wall of the tunnel kiln 1. The sealing means that the flame and hot air above the tunnel kiln 1 cannot pass through the gaps between the two linings 22 and the linings 22 and the side walls of the tunnel kiln 1 to enter the frame 21 directly below the lining 22, and cannot achieve complete airtightness. A small amount of hot air will still pass through the gaps to enter below the lining 22, which is within the range that the frame 21 can withstand.

[0046] As another preferred embodiment, air curtains are provided at both end openings of the tunnel kiln 1 .

[0047] As another preferred embodiment, kiln doors are installed at both end openings of the tunnel kiln 1 .

[0048] Example 2, reference Figure 1-Figure 9 , which is different from the above-mentioned embodiment, is that: the pushing component 5 also includes a pushing anti-slip block 53, and the clamping component 4 also includes a clamping anti-slip block 43. The pushing anti-slip block 53 is fixedly installed on the top of the pushing plate 52, and the clamping anti-slip block 43 is fixedly installed on the bottom of the rising plate 41. When the rolling wheel 51 is located near the two ends of the clamping track 6, the clamping anti-slip block 43 is located above the pushing anti-slip block 53.

[0049] The kiln car 2 is moved by the push of the car-lifting machine. In the process of moving from the entrance of the tunnel kiln 1 to the inside of the tunnel kiln 1, the rising plate 41 is located obliquely above the pushing plate 52. As the kiln car 2 moves, it pushes the next kiln car 2 to move. When the kiln car-lifting machine pushes the kiln car 2 to move, the adjacent kiln cars 2 are pressed together, and the rising plate 41 moves to the top of the pushing plate 52. Then, as the kiln car 2 moves, the rolling wheel 51 moves on the inclined part of the pressing track 6. When the pressing track 6 is pressed, the rolling wheel 51 rises, and the rolling wheel 51 drives The pushing plate 52 rises, and the pushing plate 52 abuts against the rising plate 41. The rising plate 41 pushes the kiln car 2 to move through the clamping rod 42, so that the two kiln cars 2 are close to each other. At this time, the clamping anti-slip block 43 on the rising plate 41 and the pushing anti-slip block 53 abut against each other, so that the clamping anti-slip block 43 cannot move away from the pushing plate 52, and the rising plate 41 cannot move away from the pushing plate 52. The rising plate 41 can push the kiln car 2 to move through the clamping rod 42, and will not move away from the pushing plate 52 due to the force.

[0050] Example 3, reference Figure 1-Figure 9, which is different from the above-mentioned embodiment, is that the pushing assembly 5 also includes a pushing fixing plate 54, a pushing fixing frame 55, a pushing slide bar 56 and a fixing frame 57. The pushing fixing plate 54 is fixedly mounted on the vehicle frame 21, the pushing fixing frame 55 is fixedly mounted on the pushing fixing plate 54, the pushing slide bar 56 is fixedly mounted in the pushing fixing frame 55, one end of the pushing plate 52 is arranged in the pushing fixing frame 55, the pushing slide bar 56 penetrates the pushing plate 52 and slides with the pushing plate 52, the fixing frame 57 is fixedly mounted on the bottom of the pushing plate 52, and the rolling wheel 51 is rotatably connected to the fixing frame 57.

[0051] When the rolling wheel 51 rises, the rolling wheel 51 drives the fixing frame 57 to rise, and the fixing frame 57 drives the pushing plate 52 to rise, and the pushing plate 52 moves on the pushing slide bar 56, and the pushing slide bar 56 limits the pushing plate 52 to move only vertically.

[0052] Example 4, reference Figure 1-Figure 9 , which is different from the above-mentioned embodiment, is that: the clamping assembly 4 also includes a clamping fixing plate 44, a clamping fixing block 45 and a clamping slide bar 46; the clamping fixing plate 44 is fixedly mounted on the vehicle frame 21; the clamping fixing block 45 is fixedly mounted on the clamping fixing plate 44; one end of the clamping rod 42 is rotatably connected to the rising plate 41; the other end of the clamping rod 42 is rotatably connected to the clamping fixing block 45; the clamping slide bar 46 is arranged on the clamping fixing plate 44; the clamping slide bar 46 passes through the rising plate 41 and slides with the rising plate 41.

[0053] When the pushing plate 52 rises, it drives the corresponding rising plate 41 to rise, and the rising plate 41 drives one end of the pressing slide bar 46 to move, and the other end of the pressing slide bar 46 drives the pressing fixing block 45 to move, and the pressing fixing block 45 drives the pressing fixing plate 44 to move, and the pressing fixing plate 44 drives the frame 21 to move, thereby driving the kiln car 2 to move, and the rising plate 41 moves on the pressing slide bar 46, making the rising plate 41 more stable.

[0054] Example 5, reference Figure 1-Figure 9 , which is different from the above-mentioned embodiment, is that: the clamping assembly 4 also includes a clamping cross bar 47, a clamping slide block 48, a fixed side plate 49 and a fixed bottom plate 40, one end of the clamping cross bar 47 is fixedly mounted on the clamping fixed block 45, the other end of the clamping cross bar 47 is fixedly mounted on the fixed side plate 49, the fixed bottom plate 40 is fixedly mounted on the bottom of the fixed side plate 49, the clamping slide block 48 is fixedly mounted on the top of the clamping slide bar 46, the clamping cross bar 47 passes through the clamping slide block 48 and slides with the clamping slide block 48, and the bottom of the clamping slide bar 46 abuts against the fixed bottom plate 40.

[0055] The clamping rod 42 pushes the clamping fixed block 45 to move horizontally, and the clamping fixed block 45 drives the clamping cross bar 47 to move in the clamping slide block 48, so that the clamping slide block 48 and the clamping slide bar 46 are more stable and not easy to shake.

[0056] Example 6, reference Figure 1-Figure 9 , which is different from the above-mentioned embodiment, is that: there are two clamping slide bars 46 , a limit strip 7 is fixedly installed on the fixed base plate 40 , the limit strip 7 is located between the two clamping slide bars 46 , and the fixed side plate 49 and the fixed base plate 40 are both fixedly installed on the clamping fixed plate 44 .

[0057] The clamping cross bar 47 drives the fixed side plate 49 to move, the fixed side plate 49 drives the fixed bottom plate 40 to move, the fixed bottom plate 40 drives the limit bar 7 to move, and the limit bar 7 moves between the two clamping slide bars 46 to make the clamping slide bars 46 more stable.

[0058] Example 7, reference Figure 1-Figure 9 , which is different from the above-mentioned embodiment, is that curved sealing grooves 8 are provided on both sides of the tunnel kiln 1 , and curved sealing protrusions are provided on both sides of the lining 22 . When the kiln car 2 is located in the tunnel kiln 1 , the curved sealing protrusions are located in the curved sealing grooves 8 .

[0059] When the kiln car 2 moves in the tunnel kiln 1, the curved sealing protrusions on both sides of the lining 22 move in the curved sealing grooves 8, so that the flame and hot air above the lining 22 will not directly rush to the bottom of the lining 22, ensuring that the frame 21, the clamping assembly 4 and the pushing assembly 5 below the lining 22 will not be overheated and damaged.

[0060] Example 8, reference Figure 1-Figure 9 , which is different from the above-mentioned embodiment, is that two movable guide rails 9 are fixedly installed at the bottom of the tunnel kiln 1, a support block 10 is fixedly installed at the bottom of the frame 21, a rotating shaft 11 is rotatably connected to the support block 10, and movable wheels 12 are fixedly installed at both ends of the rotating shaft 11, and the movable wheels 12 are located on the movable guide rails 9.

[0061] The frame 21 moves on the moving guide rail 9 via the moving wheels 12, so that the kiln car 2 moves more smoothly.

[0062] Example 9, reference Figure 1-Figure 9 , which is different from the above-mentioned embodiment, is that: both sides of the moving wheel 12 are fixedly installed with moving anti-slip plates 13, and the two moving anti-slip plates 13 are located on both sides of the moving guide rail 9; both sides of the rolling wheel 51 are fixedly installed with rolling anti-slip plates 14, and the two rolling anti-slip plates 14 are located on both sides of the clamping rail 6.

[0063] When the moving wheel 12 moves on the moving guide rail 9, the moving anti-dropping plates 13 are located on both sides of the moving guide rail 9, and the limiting moving wheel 12 will not fall off the moving guide rail 9, thereby improving stability; when the rolling wheel 51 moves on the clamping rail 6, the rolling anti-dropping plates 14 are located on both sides of the clamping rail 6, and the rolling wheel 51 will not fall off the clamping rail 6;

[0064] Reference Figure 1-Figure 9: The lining 22 includes a support plate 221, refractory bricks 222 and a refractory cushion material. The support plate 221 is fixedly mounted on the frame 21, the refractory bricks 222 are fixedly mounted on the support plate 221, and the refractory cushion material is arranged on the refractory bricks 222. The material of the support plate 221 is steel, the refractory bricks 222 are clay refractory bricks, and the material of the refractory cushion material is asbestos.

[0065] The fire resistance of the lining 22 ensures that it is not easily damaged in a high temperature environment.

[0066] A baking method for preparing environmentally friendly bricks uses the above-mentioned baking device with uniform heating.

[0067] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A uniformly heated roasting device, comprising a tunnel kiln, characterized in that: A plurality of kiln cars are arranged in the tunnel kiln, and the kiln cars include a car frame and a lining layer, a convex portion is arranged at one end of the lining layer, and a concave portion is arranged at the other end of the lining layer, sand sealing plates are arranged on both sides of the kiln car, and sand sealing grooves are opened on both sides of the tunnel kiln, and the sand sealing plates extend into the sand sealing grooves; A pressing assembly is provided at one end of the kiln car, and a pushing assembly is provided at the other end of the kiln car. When the kiln car moves in the tunnel kiln, the pressing assembly on the upper kiln car cooperates with the pushing assembly on the lower kiln car along the moving direction of the kiln car. The clamping assembly includes a rising plate and a clamping rod, the pushing assembly includes a rolling wheel and a pushing plate, a clamping track is fixedly installed at the bottom of the tunnel kiln, when the kiln car moves in the tunnel kiln, the rolling wheel moves on the clamping track, the two ends of the clamping track are arranged to be tilted downward, and the rolling wheel can gradually rise along the inclined part of the clamping track when moving; Along the moving direction of the kiln car, when the rolling wheel on the next kiln car moves upward, the rolling wheel pushes the rising plate on the previous kiln car to rise through the pushing plate, and the rising plate pushes the corresponding kiln car to move through the clamping rod, so that the raised part of the next kiln car is inserted into the recessed part of the previous kiln car.

2. A uniformly heated roasting device according to claim 1, characterized in that: The pushing component also includes a pushing anti-slip block, and the clamping component also includes a clamping anti-slip block. The pushing anti-slip block is fixedly installed on the top of the pushing plate, and the clamping anti-slip block is fixedly installed on the bottom of the rising plate. When the rolling wheel is located near the two ends of the clamping track, the clamping anti-slip block is located above the pushing anti-slip block.

3. A uniformly heated roasting device according to claim 1, characterized in that: The pushing assembly also includes a pushing fixed plate, a pushing fixed frame, a pushing slide rod and a fixed frame. The pushing fixed plate is fixedly mounted on the vehicle frame, the pushing fixed frame is fixedly mounted on the pushing fixed plate, the pushing slide rod is fixedly mounted in the pushing fixed frame, one end of the pushing plate is arranged in the pushing fixed frame, the pushing slide rod passes through the pushing plate and slidably cooperates with the pushing plate, the fixed frame is fixedly mounted on the bottom of the pushing plate, and the rolling wheel is rotatably connected to the fixed frame.

4. A uniformly heated roasting device according to claim 1, characterized in that: The clamping assembly also includes a clamping fixing plate, a clamping fixing block and a clamping sliding rod. The clamping fixing plate is fixedly mounted on the frame, the clamping fixing block is fixedly mounted on the clamping fixing plate, one end of the clamping rod is rotatably connected to the rising plate, the other end of the clamping rod is rotatably connected to the clamping fixing block, the clamping sliding rod is arranged on the clamping fixing plate, and the clamping sliding rod passes through the rising plate and slidably cooperates with the rising plate.

5. A uniformly heated roasting device according to claim 4, characterized in that: The clamping assembly also includes a clamping cross bar, a clamping slide block, a fixed side plate and a fixed bottom plate, one end of the clamping cross bar is fixedly mounted on the clamping fixed block, the other end of the clamping cross bar is fixedly mounted on the fixed side plate, the fixed bottom plate is fixedly mounted on the bottom of the fixed side plate, the clamping slide block is fixedly mounted on the top of the clamping slide bar, the clamping cross bar passes through the clamping slide block and slidably cooperates with the clamping slide block, and the bottom of the clamping slide bar abuts against the fixed bottom plate.

6. A uniformly heated roasting device according to claim 5, characterized in that: The clamping slide bars are provided with two, and a limit strip is fixedly mounted on the fixed bottom plate, the limit strip is located between the two clamping slide bars, and the fixed side plate and the fixed bottom plate are both fixedly mounted on the clamping fixed plate.

7. The uniformly heated roasting device according to claim 1, characterized in that: Curved sealing grooves are provided on both sides of the tunnel kiln, and curved sealing protrusions are provided on both sides of the lining. When the kiln car is located in the tunnel kiln, the curved sealing protrusions are located in the curved sealing grooves.

8. The uniformly heated roasting device according to claim 1, characterized in that: Two movable guide rails are fixedly installed at the bottom of the tunnel kiln, a support block is fixedly installed at the bottom of the frame, a rotating shaft is rotatably connected to the support block, and movable wheels are fixedly installed at both ends of the rotating shaft, and the movable wheels are located on the movable guide rails.

9. A uniformly heated roasting device according to claim 8, characterized in that: A movable anti-slip plate is fixedly installed on both sides of the movable wheel, and the two movable anti-slip plates are located on both sides of the movable guide rail. A rolling anti-slip plate is fixedly installed on both sides of the rolling wheel, and the two rolling anti-slip plates are located on both sides of the clamping track. The lining layer includes a support plate, refractory bricks and refractory pads. The support plate is fixedly installed on the frame, the refractory bricks are fixedly installed on the support plate, and the refractory pads are arranged on the refractory bricks. The material of the support plate is steel, the refractory bricks are clay refractory bricks, and the material of the refractory pads is asbestos.

10. A baking method for preparing environmentally friendly bricks, characterized in that: A uniformly heated roasting device as claimed in any one of claims 1 to 9 is used.

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